Jagiełło-Rusiłowski, Adam, and Hanna Solarczyk-Szwec. 2014. “Literature Review of Key Research on Social Competency in Polish and Worldwide Higher Education”. Przegląd Badań Edukacyjnych (Educational Studies Review) 2 (17):27-51. https://doi.org/10.12775/PBE.2013.011.